Would a capital ship with only two twin or triple main turrets have been a plausible solution?
Short answerSuch concepts existed. Three triple turrets, with two forward and one aft, are more plausible for the Royal Navy design being discussed.
NotesA viewer asks whether any capital ship of the broad period used only two twin or triple main turrets and cites an unbuilt Soviet Project 24 design study. The earlier two-turret arrangement came from the game's design limits. A historical reconstruction of the British triple-turret case would more plausibly use three main mountings, with two forward and one aft. The answer separates a layout permitted by the simulation from the arrangement a navy would probably select.